Toothbrush



FIG. 1 is a perspective view of a toothbrush showing our new design;

FIG. 2 is a reduced top plan view thereof;

FIG. 3 is a reduced front elevational view thereof;

FIG. 4 is a right side elevational view thereof, the left side being a mirror image;

FIG. 5 is a reduced rear side elevational view thereof; and,

FIG. 6 is a reduced bottom plan view thereof. 

The ornamental design for a toothbrush, as shown and described. 